JP2547147Y2 - Data movement editing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a data moving / editing apparatus of an image processing apparatus, and particularly to a data moving / editing apparatus capable of moving image data at high speed.

(Prior Art) In an image processing apparatus, various kinds of editing are performed on image data. One of them is movement of image data.

Conventionally, when moving image data stored in a memory, another memory is prepared, the image data to be moved is read from the former memory, and then the destination (address) of the latter memory is designated. Writing operation.

When the moved data is printed by, for example, a printer, the image data is read from the latter memory.

(Problems to be Solved by the Invention) As described above, conventionally, when moving image data, another memory must be prepared, and the image processing apparatus becomes large in system size and expensive. was there.

Also, as described above, the image data to be moved is read from the memory, and then the address of the destination memory is specified,
Since an operation of writing the data into the memory and then reading the data from the destination memory and sending the data to, for example, a printer is performed, the operation speed of the data movement is slow, and there is a problem that a large amount of time is required particularly when a large amount of data is moved.

An object of the present invention is to eliminate the above-mentioned problems of the conventional apparatus, and to provide a data transfer / editing apparatus which does not require a transfer destination memory and can perform a transfer processing at a high speed.

(Means and Actions for Solving the Problems) In order to achieve the above object, the present invention provides a starting and ending register in a main scanning direction in which a value determined based on a moving position of data is set. The start and end registers of the scanning direction are compared with the set values of the start and end registers in the main scanning direction and the number of video clocks, and a new main scan synchronization signal having a time width determined by the set values of the start and end registers is generated. Means for generating a new sub-scanning synchronization signal having a time width determined by the setting values of the start and end registers and the number of main scanning synchronization signals in the start and end registers in the sub-scanning direction. And a means for reading data to be moved and edited from the memory at a timing determined by the time width of the new main scanning synchronization signal and the new sub-scanning synchronization signal.

According to the present invention, the data to be moved and edited stored in the memory is specified by, for example, the address of the memory, and the timing of reading the data at the address is determined by the new main scanning synchronization signal and the new sub-scanning synchronization signal. Therefore, it is not necessary to move the image data to another memory once and then send the image data to a printer or the like as in the related art, so that the operation speed is greatly improved.

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, reference numeral 1 denotes a controller, which outputs data relating to a destination of image data (hereinafter, movement data). Reference numeral 2 denotes a main scanning direction start register, and reference numeral 3 denotes a main scanning direction end register, which holds movement data from the controller 1. Reference numeral 4 denotes a sub-scanning direction start register, and reference numeral 5 denotes a sub-scanning direction end register, which holds movement data from the controller 1 in the same manner as described above.

Reference numeral 6 denotes a video clock counter, which is enabled by a main scanning synchronization signal a sent from, for example, a printer, and measures a video clock b. Reference numeral 7 denotes a line sync counter which is enabled by the sub-scanning synchronization signal f and measures the main scanning synchronization signal a.

Reference numeral 8 denotes a first comparator which compares the moving data held in the main scanning direction start register 2 with the count value of the video clock counter 6 and inverts the output when they match, and 9 denotes a main scanning direction end register. A second comparator 10 compares the output of the sub-scanning direction register 4 with the output of the line sync counter 7, and compares the output of the sub-scanning direction register 4 with the count value of the video clock counter 6. A third comparator 11 for inverting the output when they match, a fourth comparator 11 for comparing the output of the sub-scanning direction end register 5 with the output of the line sync counter 7 and inverting the output when they match.
Is a comparator. 12 is a first register set by the output c of the first comparator 8 and reset by the output d of the second comparator 9; 13 is set by the output g of the third comparator 10; Is a second register reset by the output h of the comparator 11 of FIG.

Next, the operation of the present embodiment having the above configuration will be described.
This will be described with reference to FIGS. The second,
Reference numerals in FIG. 3 indicate signals of the same reference numerals in FIG.

Now, the mobile data X ₁ from the controller 1 is set in the main scanning direction start register 2, the mobile data X ₂ is to have been set in the main scanning direction end register 3. In addition, the movement data Y ₁ is sent from the controller 1 to the sub-scanning direction start register 4.
And the movement data Y ₂ is set in the sub-scanning direction end register 5.

When the main scanning synchronizing signal a is input from the printer, the video clock counter 6 is enabled at the rise thereof, and starts counting the video clock b. When the count value of the video clock counter 6 is equal to X _1, the output c of the first comparator 8 is inverted, the first register
12 is set and its output e becomes H (high) level.
Further, when the count value of the video clock counter 6 is equal to X _2, the output d of the second comparator 9 is inverted, the first
Is reset, and its output e becomes L (low) level.

Accordingly, the waveform of the output e of the first register 12 is as shown in FIG. That is, the waveform of the main scanning synchronization signal a from the printer is converted into the waveform of FIG.

The line sync counter 7 counts the main scanning synchronization signal a. If the count value is equal to Y _1, the output g of the third comparator 10 is inverted, the output i of the second register 13 becomes H level. Then, when the count value of the line sync counter 7 is equal to Y _2, the output h of the fourth comparator 11 is inverted, the output i of the second register 13 is L
Become a level.

As a result, the waveform of the output i of the second register 13 is as shown in FIG. 3 (i), and the sub-scanning synchronization signal f from the printer is obtained.
Is converted into a waveform i.

When the above operation is performed for one screen, the waveforms of the new main scanning synchronization signal e and the new sub scanning synchronization signal i obtained from the first and second registers 12 and 13 are shown in FIG. Become like

In FIG. 4, a and f are original main and sub-scanning synchronization signals input from a printer or the like, and e1, e2 and e3 are new main scanning synchronization signals obtained from the circuit of FIG. i2 and i3 are new sub-scanning synchronization signals.

Using the new main and sub-scan synchronization signals, for example, memory
The image data A to I stored in the destination 21 are transferred to the destination 22
Can move at high speed.

The reason will be described with reference to FIG. In the figure,
Reference numerals 24 and 25 denote a main-scanning synchronizing signal converter and a sub-scanning synchronizing signal converter, respectively, which are the same as or equivalent to those shown in FIG. The controller 1 and the image memory 21 are the same as or equivalent to those shown in FIGS. 1 and 4, respectively.

Reference numeral 23 denotes a printer, 26 denotes a DMA (direct memory access) device, and 27 denotes a video interface (video I / F) for serial / parallel conversion of image data.

The controller 1 first sets the address, data amount, and the like of the image data to be moved to the DMA device 26. Also, the movement data X ₁ , X ₂ and Y ₁ , Y ₂ are set in the main scanning synchronization signal converter 24 and the sub-scanning synchronization signal converter 25.

The main scanning synchronizing signal a, the sub-scanning synchronizing signal f and the video clock b are output from the printer 23, and the main scanning synchronizing signal converter 24 and the sub-scanning synchronizing signal converter 25 output the new main scanning synchronizing signal e and the new sub-scanning synchronizing signal. When the signal i is output, the DMA device 26 reads the moving image data from the image memory 21 and sends it to the video I / F 27. The video I / F 27 converts the image data sent by the parallel signal into serial data, and outputs the serial data to the printer 23.

For example, as the image data to be moved by the controller 1, the address “A” in the image memory 21 in FIG.
A device 26, and the main and sub-scanning synchronous signal converters 24 and 2
Assuming that the new and sub-scanning synchronization signals e1 and i1 are output to the DMA device 26 from FIG. 5, the image data “A” is read out at the timing shown in the destination 22 in FIG.
Sent to F27.

Similarly, as image data to be moved by the controller 1, the address of “DE” in the image memory 21 is assigned to the DMA device 26.
When the new and sub-scanning synchronization signals e2 and i2 are output from the main and sub-scanning synchronization signal converters 24 and 25 to the DMA device 26, respectively, the image data "DE" is Destination
It is read out at the timing shown in 22 and sent to the video I / F 27.

Further, the image data “GH” in the image memory 21 is similarly read at the timing indicated by “GH” of the destination 22 in FIG. 4 and sent to the video I / F 27.

When the above operation is performed, the image printed from the printer 23 is edited as shown in the destination 22.

In the above embodiment, the moved data is sent to the printer 23. However, the moved data may be sent to a display device for display, or may be transferred to another image processing device via a network. Of course.

Further, the present invention is effective for correcting mechanical variations of the output device such as the printer. That is, when the print image obtained by the output device tends to be deviated rightward or leftward from the center, a machine-specific correction value is set in the main scan start and end registers 2 and 3, and the print image is shifted upward or downward. If there is a tendency to shift downward, a machine-specific correction value may be set in the sub-scanning start and end registers 4 and 5.

Further, a position variation of the printing paper of the output device is detected by a sensor, and a correction value based on the variation in the position is set in the main scanning start and end registers 2 and 3 or the sub-scanning start and end registers 4 and 5. The deviation between the image and the image may be corrected.

(Effects of the Invention) As is clear from the above description, according to the present invention, the original main and sub-scanning synchronization signals are converted into the new main and sub-scanning synchronization signals by the data of the destination, and the new main and sub-scanning synchronization signals are converted. Since the image data is read from the memory based on the scan synchronization signal, it is not necessary to take the process of temporarily moving the image data to another memory and then sending it to a printer or the like, as in the related art. There is an effect that other memory is not required and the operation speed is greatly improved.

[Brief description of the drawings]

FIG. 1 is a block diagram of one embodiment of the present invention, FIGS. 2 and 3 are waveform diagrams of signals of main parts of FIG. 1, FIG. 4 is a conceptual diagram of moving and editing data, and FIG. FIG. 4 is a block diagram of an application device of the present invention. 1 ... controller, 2 ... main scanning direction start register, 3 ...
Main scanning direction end register, 4 ... sub-scanning direction start register, 5 ... sub-scanning direction end register, 6 ... video clock counter, 7 ... line sync counter, 8, 9, 10, 11
… Comparator, 12, 13… Register,

Claims (1)

(57) [Scope of request for utility model registration] 1. A data movement editing apparatus for moving and editing data stored in a memory, wherein a start and end register in a main scanning direction and a start and end in a sub-scanning direction in which a value determined based on a movement position is set. Means for comparing a set value of the start and end registers in the main scanning direction with the number of video clocks, and generating a new main scan synchronization signal having a time width determined by the set values of the start and end registers; Means for comparing the set values of the start and end registers in the sub-scanning direction with the number of main scan synchronization signals and generating a new sub-scan synchronization signal having a time width determined by the set values of the start and end registers; Means for reading out data from the memory at a timing determined by the time width of the new main scanning synchronization signal and the new sub-scanning synchronization signal. Place.